Wheel.



J. PIERCE.

WHEEL.

APPLICATION FILED OUT. 25, 1912. 1,091,241. Patented Mar. 24, 191;

2 SHEETS-SHEET 2.

ii i a gk W N 9 H w WITNESSES: [NI/EN TOR A TTUHNEY COLUMBIA PLANoGRAPnkiOqWASHlNCITON. D.

' TED STATES PATENT OFFICE.

JAMES PIEROE,,OF OGDEN, UTAH.

WHEEL.

T 0 all whom it may concern Be it known that I, JAMES PIERCE, a citizenof the United States, residing at @gden, in the county of lVeber andState of Utah, have invented certain new and useful Improvements inWheels, of which the follow.

struct a wheel in such a manner, as to avoid,

the use of pneumatic tubes and casings, and yet produce a tread whichwill yield to an uneven surface so perfectly as to produce a pneumaticresult.

A further object of my invention is to construct a wheel having asectional tread supported by. cables, said cables being held tight by apneumatic device, thus affording a resilient support for the tread orsections thereof.

With these objects in view and such others as may hereinafter appear, myinvention consists in the particular construction of the various parts,and in the novel manner of combination and arrangement of said parts,all of which will be more fully described and specifically pointed outin the appended claims.

In the drawings forming a part of this specificati0n:-Figure 1, is a'view in side elevation, with the casing partly removed. Fig. 2, is anedge view of the wheel partly broken away to show the cables and pulleysused therein. Fig. 3, is a central sectional view of the air cushiondevice. Fig. 1, is a detailed sectional view on the line aa, Fig. 1,showing the tread and pulley, and Fig. 5, is a detail edge view of thepulleys employed in carrying the cables.

Referring by numerals to the drawings,1 represents the hub of a wheel,which may be of any desired construction, having a series of spokes 2,supporting a felly 3, upon which is mounted a series of longitudinalpulleys -l-, spaced apart as clearly shown in Fig. 1.

Two of the longitudinal pulleys 5 and 6 arein juxtaposition to eachother, the object of which will be hereinafter explained. Mounted uponthe pulleys 4, are two cables 7 and 8, the respective ends of which passover the pulleys 5 and 6, and down to a piston 9, to

Specification of Letters Patent.

Application filed October 25, 1912,

Patented Mar. 24, 1914. Serial No. 727,741.

which they are connected in any desirable manner to avoid the binding ofthe piston upon the cylinder 10, which is mounted be tween the spokes 2,and is provided with an air chamber 11, having an air valve 12, for thepurpose of receiving the pressure by which the cables are held tight.The piston 9, is connected by adjustable rods 13, to an oppositelydisposed piston 14:, mounted upon an auxiliary cylinder 15, which isalso provided with anair chamber 16, the chambers 11 and 16, beingconnected by a pipe 17 in order to charge and maintain an equal pressureof air in both cylinders. The auxiliary cylinder 15, is normally idle,and is brought in play only upon the wheel receiving an unusual shock,or when the shock is re ceived at any one of the points of connection ofthe sectional rim or tread hereinafter referred to.

The tread is formed in sections 18, as most clearly shown in Fig. 1, andthese sections are each provided with longitudinal pulleys 19, arrangedapproximately near one end, and are hinged together as shown at 20, insuch a manner that they will admit of rocking and will beinterchangeable. The pulleys 19, upon the sectional tread, rest upon thecables 7 and '8, and are prevented from being displaced by U-shapedmembers 21, passing beneath the cables. The sectional treads areprovided with rubber facings 22, and are connected by a strip of canvas23, or other suitable material to the folly, thus completely housing thecables and pulleys.

I deem the foregoing explanation sufliciently plain to be readilyunderstood by all conversant in such matters, the extreme simplicityrendering an elaborate descrip tion unnecessary.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is 1. A wheel having a series of longitudinalpressor adjustably connected to the piston of the main air compressor, asectional tread mounted upon the cables, substantially as specified.

3. A wheel having a series of longitudinal pulleys mounted upon its rimcorresponding cables resting upon said pulleys, an air con'ipressol'interposed between the spokes of the wheel, an auxiliary air compressorinterposed between the spokes in an opposite position, the chambers ofthe two air compressors being connected, adjustable means for connectingthe pistons of the air coinpressors, the free ends of the cables beingconnected to the piston of the main air compressor, a sectional tread,pulleys upon one end of each of the sections composing the tread, thepulleys upon the sections resting upon the cables, means for securingthe sections upon the cable, and a housing for inclosing the pulleys andcables, substantially as specified.

JAMES PIERCE. \Vitnesses M. H. HOLLOWAY, O. H. FOWLER.

Copies 0! this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. C."

